Steag Hamatech Ag

Bj&ouml;rn Liedtke

Ulrich Speer

Hans Gerd Esser

Joachim Gordt

James Wise

An apparatus is provided for joining together at least two substrates, each of which has an inner hole. The apparatus has a pin that is adapted to the inner holes of the substrates. The pin is provided with at least two noses that are movable radially relative to the pin. The noses have linear outer surfaces upon which the edges of the inner holes of the substrates can glide downwardly during movement of the noses toward the pin.

Apparatus for joining substrates together

To enable filling a pressure tank with a fluid without having to interrupt the use of the pressure tank, a method is provided for filling a pressure tank with a fluid from a refill tank that is disposed higher, whereby the tanks are interconnected via a gas connecting line and a fluid feed line. The method includes the regulation of the pressure in the pressure tank via a proportional valve disposed in a gas inlet line of the pressure tank, while the connecting lines to the refill tank are closed, the adjustment of the pressure in the refill tank to the pressure in the pressure tank, and the opening of the connecting lines between the refill tank and the pressure tank. Furthermore, an apparatus for carrying out the above method is provided.

Growing community of inventors

Munich, Germany

Björn Liedtke

Growing community of inventors

Munich, Germany

Bj&ouml;rn Liedtke

Björn Liedtke